I use just use a siphon with an irrigation valve to control the driprate. Took about 4 weeks to fully cycle then the nitrates dropped like a rock. I have this on my SW. For the hose going in and out, I drilled through the top then using a torch I warmed up the factory hose connections and sealed them off.

Yes someone please post results. and materials w/instructions :)

How would one of these work on a system without a sump??

I do need a de nitrate of some sort as mine are always @ 40 - 100 thats with 20% h20 changes every 2 - 4 days.

Don't forget, for a drip rate you can always use irrigation drippers sold at Home Depot or Rona to name just two sources. You can get 1/2 gallon per hour, 1 Gph or 2 Gph drippers. I used them on a homemade Ca reactor and just made sure I changed them often. They're cheap so no big deal.

Doug

PS I would think a Fluvel would be great as a housing for the coiled lines, input from the tank/sump and output into the sump at a controlled rate. Coils are supposed to be kept in the dark if I remember right so the fluvel would work well.

I dont know about the light thing but it's true the 403 is a dark smoked grey.


Wayne

Yes please i would like to know too if the tank has nosump how would you get your Fluval to a controlled drip rate without pressurizing the unit also can this coil Denitrator be combined with Sulphur Denitrator? Just wondering?

I posted a design I came up with.
check out
http://canreef.com/vbulletin/showthr...545#post230545

hope this helps
thanks
Neal

wow finaly a new use for all those bio balls i ordered from the states all those years ago.